215030552 has 96 divisors (see below), whose sum is σ = 478321200. Its totient is φ = 90224640.

The previous prime is 215030549. The next prime is 215030561. The reversal of 215030552 is 255030512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1201199 + ... + 1201377.

Almost surely, 2^215030552 is an apocalyptic number.

215030552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215030552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239160600).

215030552 is an abundant number, since it is smaller than the sum of its proper divisors (263290648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215030552 is a wasteful number, since it uses less digits than its factorization.

215030552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 215030552 is about 14663.9200761597. The cubic root of 215030552 is about 599.1010166840.

The spelling of 215030552 in words is "two hundred fifteen million, thirty thousand, five hundred fifty-two".